Here is a resource with a descriptive approach to explaining the scientific method. It's simple, but effective for both introduction and reinforcement of this concept. 

Guide learners through an experiment with a set of worksheets on the scientific method. Six steps prompt your class to ask questions, conduct research, form a hypothesis, test theories, analyze data, and report results.

Space shuttles traveled around Earth at a speed of 17,500 miles per hour, way faster than trains, planes, or automobiles travel! In the 13th installment of 22, groups graph different speeds to show how quickly spacecraft move through...